A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is
We use first principles calculations to study the electronic properties of rock salt rare earth monopnictides LaX (X=N, P, As, Sb, Bi). A new type of topological band crossing termed 'linked nodal rings' is found in LaN when the small spin-orbital coupling (SOC) on nitrogen orbitals is neglected. Turning on SOC gaps the nodal rings at all but two points, which remain gapless due to C_4-symmetry and leads to a 3D Dirac semimetal. Interestingly, unlike LaN, compounds with other elements in thearXiv:1504.03492v1 fatcat:u47mqgf2evdrveqoznydz4sohy